EP 3557887 A1 20191023 - SELF-CALIBRATING MULTIPLE LOW-FREQUENCY SPEAKER SYSTEM
Title (en)
SELF-CALIBRATING MULTIPLE LOW-FREQUENCY SPEAKER SYSTEM
Title (de)
SELBSTKALIBRIERENDES SYSTEM MIT MEHREREN NIEDRIG-FREQUENZ LAUTSPRECHERN
Title (fr)
SYSTÈME D'AUTO-ÉTALONNAGE COMPRENANT PLUSIEURS HAUT-PARLEURS BASSE FRÉQUENCE
Publication
Application
Priority
- US 201862656483 P 20180412
- EP 18174559 A 20180528
Abstract (en)
Embodiments are directed to a speaker system that contains multiple low frequency speakers distributed within a room. Each speaker has at least one driver capable of adequate bass response and an integrated microphone and on-board power and digital signal processing capability. The system has a central sound processor that performs a measurement and calibration process for all of the speakers in the room by receiving test signals from the speakers, measuring certain audio characteristics, deriving audio processing coefficients to smooth the bass response, and transmitting the respective coefficients to each speaker for application to the input audio signals for playback.
IPC 8 full level
H04S 7/00 (2006.01)
CPC (source: EP US)
H04R 3/12 (2013.01 - US); H04R 29/001 (2013.01 - US); H04S 7/301 (2013.01 - EP); H04S 7/307 (2013.01 - EP); H04S 2400/07 (2013.01 - EP)
Citation (search report)
- [A] US 2015215723 A1 20150730 - CARLSSON GREGORY PETER [US], et al
- [A] WO 2008040096 A1 20080410 - IPPV PTY LTD [AU], et al
- [A] EP 1651007 A2 20060426 - MATSUSHITA ELECTRIC IND CO LTD [JP]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3557887 A1 20191023; EP 3557887 B1 20210303; US 10805750 B2 20201013; US 2019320275 A1 20191017
DOCDB simple family (application)
EP 19167942 A 20190408; US 201916381255 A 20190411